13271380 has 12 divisors (see below), whose sum is σ = 27869940. Its totient is φ = 5308544.

The previous prime is 13271351. The next prime is 13271383. The reversal of 13271380 is 8317231.

It can be written as a sum of positive squares in 2 ways, for example, as 9721924 + 3549456 = 3118^2 + 1884^2 .

It is a super-2 number, since 2×13271380² = 352259054208800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13271383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331765 + ... + 331804.

It is an arithmetic number, because the mean of its divisors is an integer number (2322495).

Almost surely, 2^13271380 is an apocalyptic number.

13271380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13271380 is an abundant number, since it is smaller than the sum of its proper divisors (14598560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13271380 is a wasteful number, since it uses less digits than its factorization.

13271380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663578 (or 663576 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 13271380 is about 3642.9905297708. The cubic root of 13271380 is about 236.7583809937.

The spelling of 13271380 in words is "thirteen million, two hundred seventy-one thousand, three hundred eighty".